矿用产品LonWorks总线接口保护技术

基金项目:

“十一五”国家科技支撑计划项目(2009BAK54B04)

详细信息

Protection Technology of LonWorks Bus Interface of Mine-used Products

摘要: 针对矿用产品LonWorks总线接口在实际应用中容易损坏的问题，分析了导致损毁的主要原因是收发信号不隔离、浪涌脉冲和长距离传输等因素，给出了3种由陶瓷气体放电管、自恢复保险丝、瞬态抑制二极管、静电放电保护器件组成的LonWorks总线接口保护电路。测试结果表明，该3种保护电路均满足有关标准的浪涌抗扰度测试要求，应用效果良好。
- 矿用产品 /
- LonWorks总线 /
- 接口保护 /
- 浪涌脉冲 /
- 陶瓷气体放电管 /
- 自恢复保险丝 /
- 瞬态抑制二极管 /
- 静电放电
Abstract: For the problem of frequent damage in application of LonWorks bus interface of mine-used products, main causes were analyzed including unisolating sending and receiving signals, electrical surge and long-distance transmission. Three protection circuits were gave which are composed of gas discharge tube, polymeric positive temperature coefficent, transient voltage suppressor and electro-static discharge protector. The test result showed that the three circuits can achieve corresponding standards about anti-interference testing of electrical surge and have good effect in use.
- mine-used product, LonWorks bus, interface protection, electrical surge, gas discharge tube, polymeric positive temperature coefficent, transient voltage suppressor, electro-static discharge